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Finding the Fourth Proportional to 201,513.62, 302,259.50 and 61,261.31

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Solution

The fourth proportional to 201,513.62, 302,259.50 and 61,261.31 is: 91,888.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,513.62 : 302,259.50 = 61,261.31 : x
  2. Step 2: Convert to fraction form
    201,513.62/302,259.50 = 61,261.31/x
  3. Step 3: Cross multiply
    201,513.62x = 302,259.50 × 61,261.31
  4. Step 4: Simplify right side
    201,513.62x = 18,516,813,609.02
  5. Step 5: Solve for x
    x = 18,516,813,609.02/201,513.62
  6. Step 6: Final answer
    x = 91,888.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.